Roseanne Barr, star of the recently rebooted sitcom Roseanne, which premiered to stellar ratings earlier this week, has found herself at the center of controversy after tweeting about Parkland shooting survivor David Hogg, accusing him of performing a Nazi salute.

Alberto E. Rodriguez / Getty Images

The tweet, which was apparently sent on Tuesday (the same evening the show aired on ABC), was swiftly removed, with some wondering if the network had made the comedian delete it.

But others shared images that appeared to show Barr originally responding to the raised-fist image.

The image of Hogg in question was from the March for Our Lives rally held in Washington, DC, on Saturday. Hundreds of thousands across the country took part in demonstrations, calling for an end to gun violence.

Chip Somodevilla / Getty Images

Hogg and the other Parkland students advocating for an end to gun violence have been the subject of several conspiracy theories, including allegations that they are Nazis.

Today Roseanne tweeted and deleted “NAZI SALUTE” at David Hogg, school shooting survivor. I can deal with differing opinions. What I can’t deal with is adults harassing kids because they’re too stupid to recognize and dismiss insane conspiracy theories. She’s an ignorant bully. https://t.co/DthxsKnzkL

In that same year, Barr made headlines when she was accused of being anti-trans after saying, "Women do not want your penises forced in their faces or in private bathrooms. Respect that fact."

(For context, the star got into an argument with a Twitter follower who'd made her aware that politician Jill Stein was a supporter of trans rights.)

In February of 2015, Barr said she hoped the University of California, Davis would be nuked after students voted to divest from companies said to profit from Israeli settlements in Palestinian territories.

Twitter

In December 2016, Barr also likened former president Barack Obama to Nazi leaders after his administration chose not to vote during a UN Security Council meeting, which resulted in a condemnation of Israeli settlements in the West Bank.

Twitter

As recently as last year, the star pushed a debunked theory, popularly known as Pizzagate, that suggested Hillary Clinton and other leading Democrats were somehow involved in a worldwide sex trafficking and pedophilia ring.

Twitter

Last summer, the Daily Beast published a detailed account of Barr's ties to the alt-right ideology.

The site wrote about how Barr had retweeted unfounded reports about voter fraud, like one from InfoWars that claimed “5.7 Million Illegals” voted in the 2008 presidential election. The report also said that this may have been a reason President Donald Trump lost the popular vote to Hillary Clinton.

The Daily Beast also pointed out that Barr shared other articles from now-deleted tweets alleging Democratic Sen. Kamala Harris had a "Dirty Sex Secret," as well as posts from conspiracy site the Gateway Pundit and Milo Yiannopoulos’ website.

With the newfound success of her TV show, on which her character supports President Trump, Barr's detractors are renewing their criticisms of her views.

Screenwriter Geoff LaTulippe recounted many of the incendiary things Barr has said in the past and called her a "landfill."

I can't believe we're even having a discussion over whether or not Roseanne Barr is trash.
She's said hateful things about the trans community, about Muslims, about a host of others AND she promoted the Pizzagate conspiracy.
Fuck her. She's a landfill.